Allowance for Noncovered Loan and Lease Losses and Unfunded Commitments and Letters of Credit (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for loan and lease losses			$ 4,039	$ 268
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of unallocated loan amount			5.00%
Noncovered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for loan and lease losses	$ 600	$ 2,000	$ 100	$ 1,000